package com.itheima.reggie.controller;


import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.itheima.reggie.common.CustomException;
import com.itheima.reggie.common.R;
import com.itheima.reggie.dto.DishDto;
import com.itheima.reggie.dto.SetmealDto;
import com.itheima.reggie.entity.Category;
import com.itheima.reggie.entity.Setmeal;
import com.itheima.reggie.entity.SetmealDish;
import com.itheima.reggie.service.CategoryService;
import com.itheima.reggie.service.SetmealDishService;
import com.itheima.reggie.service.SetmealService;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang.StringUtils;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.cache.CacheManager;
import org.springframework.cache.annotation.CacheEvict;
import org.springframework.cache.annotation.Cacheable;
import org.springframework.web.bind.annotation.*;

import java.util.Arrays;
import java.util.List;
import java.util.stream.Collectors;
import java.util.stream.LongStream;

@RestController
@Slf4j
@RequestMapping("/setmeal")
public class SetmealController {
    @Autowired
    private CacheManager cacheManager;

    @Autowired
    private SetmealService setmealService;

    @Autowired
    private SetmealDishService setmealDishService;

    @Autowired
    private CategoryService categoryService;

    /**
     * 新增套餐
     * @param setmealDto
     * @return
     */
    @PostMapping
    @CacheEvict(value = "setmealCache",allEntries = true)
    public R<String> save(@RequestBody SetmealDto setmealDto){
        log.info("儿童套餐A{}",setmealDto);

        setmealService.saveWithDish(setmealDto);

        return R.success("添加成功");
    }



    /**
     * 套餐管理分页查询
     * @param page
     * @param pageSize
     * @return
     */
    @GetMapping("/page")
    public R<Page> page(int page,int pageSize,String name){
             Page<Setmeal> setmealPage=new Page<>(page,pageSize);
             Page<SetmealDto> setmealDtoPage=new Page<>();

        BeanUtils.copyProperties(setmealPage,setmealDtoPage,"records");

        LambdaQueryWrapper<Setmeal>queryWrapper=new LambdaQueryWrapper<>();
        queryWrapper.like(StringUtils.isNotEmpty(name),Setmeal::getName,name);
        queryWrapper.orderByDesc(Setmeal::getUpdateTime);

        setmealService.page(setmealPage,queryWrapper);

        List<Setmeal> records = setmealPage.getRecords();
        List<SetmealDto> setmealList=records.stream().map((item)->{
              SetmealDto setmealDto=new SetmealDto();
              BeanUtils.copyProperties(item,setmealDto);
            Long categoryId = item.getCategoryId();
            Category category = categoryService.getById(categoryId);
            if (category != null){
                setmealDto.setCategoryName(category.getName());
            }


            return setmealDto;
        }).collect(Collectors.toList());
                     setmealDtoPage.setRecords(setmealList);

        return R.success(setmealDtoPage);
    }

    /**
     * 根据id查询套餐
     */

    @GetMapping("/{id}")
    public R<SetmealDto> get(@PathVariable long id){
     SetmealDto setmealDto =  setmealService.getByIdWithDish(id);


        return R.success(setmealDto);
    }

    /**
     * 修改套餐
     */
    @PutMapping
    public R<String> update(@RequestBody SetmealDto setmealDto){
       // log.info("儿童套餐A{}",setmealDto);

        setmealService.updateWithDish(setmealDto);

        return R.success("修改成功");
    }

    /**
     * 启售
     */
    @PostMapping("/status/{status}")
    public R<String> status(@PathVariable int status,long [] ids){
        if (ids==null){
            throw new CustomException("没有批量选择");
        }
        for (Long id : ids) {
            Setmeal setmeal = setmealService.getById(id);
            setmeal.setStatus(status);
            setmealService.updateById(setmeal);
        }
        String flag;
        if(status==1){
              flag="启用";
        }else {
            flag="禁用";
        }

        return R.success("状态修改为"+flag);
    }

    /**
     * 删除
     */

    @DeleteMapping
    @CacheEvict(value = "setmealCache",allEntries = true)
    public R<String> delete(long [] ids){

        if(ids.length==0){
            throw new CustomException("没有批量选择");
        }
        for (long id : ids) {
            Setmeal setmeal = setmealService.getById(id);
            Integer status = setmeal.getStatus();
            if (status==1){
                throw new CustomException("启售套餐无法删除");
            }else {
                LambdaQueryWrapper<Setmeal> queryWrapper=new LambdaQueryWrapper<>();
                queryWrapper.eq(ids != null,Setmeal::getId,id);
                setmealService.remove(queryWrapper);
            }
        }


        return R.success("删除成功");
    }

    /**
     * 根据条件查询套餐数据
     * @param setmeal
     * @return
     */
    @GetMapping("/list")
    @Cacheable(value = "setmealCache",key = "#setmeal.categoryId +'_' +#setmeal.status")
    public R<List<Setmeal>> list(Setmeal setmeal){
   LambdaQueryWrapper<Setmeal>queryWrapper=new LambdaQueryWrapper<>();
   queryWrapper.eq(setmeal.getCategoryId()!=null,Setmeal::getCategoryId,setmeal.getCategoryId());
   queryWrapper.eq(setmeal.getStatus()!=null,Setmeal::getStatus,setmeal.getStatus());
   queryWrapper.orderByDesc(Setmeal::getUpdateTime);

        List<Setmeal> list = setmealService.list(queryWrapper);


        return R.success(list);
    }
}
